Remove ScriptObject

Source/bindings/v8/ScriptValue.h

Index: Source/bindings/v8/ScriptValue.h
diff --git a/Source/bindings/v8/ScriptValue.h b/Source/bindings/v8/ScriptValue.h
index 8ffa4caadbbf43c1d71b12bebb3287299daf76b9..7ecf070e13415162838905d8629f02bf5d7a270f 100644
--- a/Source/bindings/v8/ScriptValue.h
+++ b/Source/bindings/v8/ScriptValue.h
@@ -154,12 +154,23 @@ public:
 
 private:
     mutable v8::Isolate* m_isolate;
-    // FIXME: m_scriptState is not yet used.
-    // We will start using it once we remove ScriptValue(v8::Handle<v8::Value> value, v8::Isolate* isolate).
     mutable RefPtr<ScriptState> m_scriptState;
     RefPtr<SharedPersistent<v8::Value> > m_value;
 };
 
+struct ScriptValueHash {
+    static unsigned hash(const ScriptValue& object) { return v8::Handle<v8::Object>::Cast(object.v8Value())->GetIdentityHash(); }
+    static bool equal(const ScriptValue& a, const ScriptValue& b) { return a == b; }
+    static const bool safeToCompareToEmptyOrDeleted = true;
+};
+
+struct ScriptValueHashTraits : WTF::GenericHashTraits<ScriptValue> {
+    static const bool emptyValueIsZero = false;
+    static ScriptValue emptyValue() { return ScriptValue(); }
+    static void constructDeletedValue(ScriptValue& slot) { slot = ScriptValue(); }
+    static bool isDeletedValue(ScriptValue value) { return value.isEmpty(); }
+};
+
 } // namespace WebCore
 
 #endif // ScriptValue_h